The tech blog WinBeta.org sent artist Oliver Fuh to test a Surface Pro 4 and he wrote up an exhaustive post on his first impressions.

Rather than test with the default apps or Sketchable, Oliver was able to install the PaintTool SAI 2.0 beta. He captured the following video.

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The store staff also allowed him to test the new pen nibs and his findings are fascinating and somewhat disappointing.

2H – the thickest nib of the four, and it’s SUPER slick. The slipperiest drawing experience I’ve ever had on a digital display, and that says a lot, as most of them are pretty slippery. It also feels like the softest of the four. I’d love to use this for super fast sketching, or for drawing extremely long, flowing curves.

H – similar to 2H in slipperiness, but with a much thinner, even a bit harder tip. It feels much more conducive to precision drawing. It’s extremely faint, but I detect just a bit more resistance when drawing with this nib.

HB – I’m can’t exactly recall, but this might be the same as the standard nib that comes with the pen. I haven’t confirmed that for sure though. This feels very similar the standard pen nib, which has a strong, if even slightly rubbery, surface resistance. This, and the standard pen (if they’re not same thing) both feel great for standard note-taking and precision stroke drawing.

B – the most grippy of the four, but only slightly more so than HB/standard. Truth be told, I had a really hard time discerning the difference between this and HB.